The One Piece Ball valve as the name suggests is made out of one body piece unlike the 2 and 3-piece. A one-piece ball wave has a body and end connections formed from a single piece of material.
This construction presents a comparatively reduced number of opportunities for leakage. The valve trim and seals are inserted through one of the end connections. This type of valve will not have a port size equal to the line size.
Commercial Advantages:
Lower Cost: The simplicity of the one piece body design tends to make their cost lower than the other versions.
Excellent Corrosion Resistance: Stainless steel & PTFE work well in applications including but not limited to water oil gas, air , light alkalis and acids, biodiesel ,fuels and alcohols.
Stronger sealing：These ball valves are fitted with tight seals to ensure no leakage and a long lasting seal after many years of frequent usage.
Application
Water
Petroleum
Chemical
Light industry
High-voltage equipment
Pharmaceutical
Paper
Other pipe systems
